1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
//! The `Reflector` struct.
use js::rust::HandleObject;
use crate::DomTypes;
use crate::dom::bindings::conversions::DerivedFrom;
use crate::dom::bindings::iterable::{Iterable, IterableIterator};
use crate::dom::bindings::root::{Dom, DomRoot, Root};
use crate::dom::bindings::trace::JSTraceable;
use crate::dom::globalscope::{GlobalScope, GlobalScopeHelpers};
use crate::realms::AlreadyInRealm;
use crate::script_runtime::{CanGc, JSContext};
/// Create the reflector for a new DOM object and yield ownership to the
/// reflector.
pub(crate) fn reflect_dom_object<D, T, U>(obj: Box<T>, global: &U, can_gc: CanGc) -> DomRoot<T>
where
D: DomTypes,
T: DomObject + DomObjectWrap<D>,
U: DerivedFrom<D::GlobalScope>,
{
let global_scope = global.upcast();
unsafe { T::WRAP(D::GlobalScope::get_cx(), global_scope, None, obj, can_gc) }
}
pub(crate) fn reflect_dom_object_with_proto<D, T, U>(
obj: Box<T>,
global: &U,
proto: Option<HandleObject>,
can_gc: CanGc,
) -> DomRoot<T>
where
D: DomTypes,
T: DomObject + DomObjectWrap<D>,
U: DerivedFrom<D::GlobalScope>,
{
let global_scope = global.upcast();
unsafe { T::WRAP(D::GlobalScope::get_cx(), global_scope, proto, obj, can_gc) }
}
pub(crate) trait DomGlobalGeneric<D: DomTypes>: DomObject {
/// Returns the [`GlobalScope`] of the realm that the [`DomObject`] was created in. If this
/// object is a `Node`, this will be different from it's owning `Document` if adopted by. For
/// `Node`s it's almost always better to use `NodeTraits::owning_global`.
fn global(&self) -> DomRoot<D::GlobalScope>
where
Self: Sized,
{
let realm = AlreadyInRealm::assert_for_cx(D::GlobalScope::get_cx());
D::GlobalScope::from_reflector(self, &realm)
}
}
impl<D: DomTypes, T: DomObject> DomGlobalGeneric<D> for T {}
pub(crate) trait DomGlobal {
fn global(&self) -> DomRoot<GlobalScope>;
}
impl<T: DomGlobalGeneric<crate::DomTypeHolder>> DomGlobal for T {
fn global(&self) -> DomRoot<GlobalScope> {
<Self as DomGlobalGeneric<crate::DomTypeHolder>>::global(self)
}
}
pub(crate) use script_bindings::reflector::{DomObject, MutDomObject, Reflector};
/// A trait to provide a function pointer to wrap function for DOM objects.
pub(crate) trait DomObjectWrap<D: DomTypes>:
Sized + DomObject + DomGlobalGeneric<D>
{
/// Function pointer to the general wrap function type
#[allow(clippy::type_complexity)]
const WRAP: unsafe fn(
JSContext,
&D::GlobalScope,
Option<HandleObject>,
Box<Self>,
CanGc,
) -> Root<Dom<Self>>;
}
/// A trait to provide a function pointer to wrap function for
/// DOM iterator interfaces.
pub(crate) trait DomObjectIteratorWrap<D: DomTypes>:
DomObjectWrap<D> + JSTraceable + Iterable
{
/// Function pointer to the wrap function for `IterableIterator<T>`
#[allow(clippy::type_complexity)]
const ITER_WRAP: unsafe fn(
JSContext,
&D::GlobalScope,
Option<HandleObject>,
Box<IterableIterator<D, Self>>,
CanGc,
) -> Root<Dom<IterableIterator<D, Self>>>;
}
|
